Hi buddyjoe,
The 3.7 client repos you mentioned are available as part of the Katello 3.7 RC1 release and it appears you’ve found an issue. There have been some changes to how we’ve packaged up the related deps (gofer, etc) which got us here.
There are two things you can do to get around this. The easiest fix will be to use the 3.6 client repos until we fix the issue you’ve kindly reported.
However, if you’re feeling up to giving it a try you can adjust /etc/yum.repos.d/gofer.repo to look like this and after reinstalling all gofer related packages from it I suspect you’ll have much better luck. If you go that route please report back and let us know if it worked or not. The reason this will fix the issue is that the gofer provided by the repo I linked will run against python3 which is what our updated client tools expect on f27.